in teleosts the insulin-like growth factor-i, a member of igf system, play an important role in the control of growth and reproduction including metabolism, cell division, oogenesis, final oocyte maturation and secretory activity. this system is controlled by several hormones and metabolic status. serum igf-i, thyroxine (t4) and cortisol levels were studied in two female brood stocks (caught fr...

The year 2008 witnessed the greatest joint stock reform and financial crisis in Chinese history. After these two cases, significant changes have taken place in investors’ behaviors worldwide, along with which is the occurrence of structure change in stock market. In this paper, we employ Copula model to simulate the joint distribution between Shanghai Stock Index (SSE) and Chinese Shanghai Inde...

This paper evaluates the scale of productivity change of the Bank of Serbia over the period 20072010. In this research the emphasis is put on measuring the productivity based on information from the financial statements using Data Envelopment Analysis (DEA) method and Malmquist index to estimate the individual bank efficiency and productivity changes within this period. The Malmquist productivi...

The Chinese banking sector has gone through a consistent process of the reform which includes liberalization of the business to foreign banks, privatization and listing bank shares, allowing diversifications into intermediary business beyond the traditional deposit and loan activities. In the mean time, the changing structures of the banking sector and the favourable economic condition in the r...

We examine the joint time series of option prices and returns on the S&P 500 index and a set of stocks drawn from the index with a new arbitrage-free multivariate stochastic volatility model that captures a market effect. The preliminary results show that the new model fits well for all the marginal time series for different periods of time. The price of volatility risk is estimated from option...